Engadget - Sony many be garnering the lion's share of attention these days with its advances in holographic storage, but it's not the only one working in the promising new medium, as evidenced by this latest development from a pair of researchers at Nanyang Technological University in Singapore. As New Scientist reports, they're apparently well on their way to creating a rewriteable holographic memory device that can not only be used to store data, but actually be used to manipulate cells and other tiny particles.